Battery pack housing for electrical stimulator



FIG. 1 is a top perspective view of the battery pack housing of the present invention showing my new design;

FIG. 2 is a rear end view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a right elevational view thereof; and,

FIG. 6 is a end elevational view thereof with the bottom plan view forming no part of the claimed design. 

The ornamental design for a battery pack housing for electrical stimulator, as shown and described. 